2 years ago

Find the standard deviation of 33, 35, 34, 31, 36, and 35. If necessary, round your answer to the nearest tenth.

Mathematics

1 answer:

ozzi2 years ago

6 0

Answer:

33: 5.7

35: 5.9

34: 5.8

31: 5.6

36: 6

35: 5.9

Step-by-step explanation:

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Steve can jog 14 miles in 2 hours. At this rate, how many miles can he jog in 1/4 hour?

Assoli18 [71]

Answer:

1 3/4 miles in 1/4 hour.

Step-by-step explanation:

Write and solve an equation of ratios:

x (1/4) hr

--------- = ------------

14 mi 2 hr

Cross multiplying, we get 2x = (1/4)(14), or

x = (1/4)(7), or x = 7/4

Steve can jog 7/4 miles in 1/4 hour. That's 1 3/4 miles in 1/4 hour.

4 0

3 years ago

Read 2 more answers

Factor completely<br> B. (x+5)²-2(x+5)-24<br> C. (x+2)²-8(x+2)+15<br> D. 2(2x-1)²-9(2x-1)+4

Sladkaya [172]

B.
${x}^{2} + 10x + 25 - 2x - 10 - 24 = \\ x {}^{2} + 8x - 9 = \\ (x - 1)(x + 9)$

C.
${x}^{2} + 4x +4 - 8x - 16 + 15 = \\ x {}^{2} - 4x + 3 = \\ (x - 3)(x - 1)$
D.
$2( {4x}^{2} - 4x + 1) - 18x + 9 + 4 = \\ 8x {}^{2} - 8x + 2 - 18x + 13 = \\ 8x {}^{2} - 26x + 15$

please mark as brainliest.

3 0

3 years ago

Simplify 1/3(1/2-1/3)-1/3(1/3-1/2)

zhuklara [117]

Answer:

im pretty sure its 1/9

Step-by-step explanation:

1/3 x 1/6-1/3 x (-1/6)

1/18 + 1/18

5 0

3 years ago

Mr. Matthews increased the amount of weight he lifted each morning from 80 to 90 pounds. By what percentage did Mr. Matthews inc